Low Creep High Alumina Brick for Hot-blast Stove
Low Creep High Alumina Brick for Hot-blast Stove
Characteristics:
1. The content of AL2O3 is ≥50%.
2. High refractoriness under load. The RUL is higher than fireclay brick as the high content of Al2O 3, however, it is lower than silica brick because of mullite crystal does not form reticular tissue.
3. Excellent slag resistance. High alumina brick is a kind of neutral refractory material so it enjo ys excellent resistance to acid slag and alkali slag corrosion.
Application:
The main markets for low creep high alumina brick are building lining of hot-blast stove, blast furn ace, coke oven, rotary kilns of cement and so on.
Technical Data:
|
Item |
High Alumina Brick |
|||||||
|
DRL-155 |
DRL-150 |
DRL-145 |
DRL-140 |
DRL-135 |
DRL-130 |
DRL-127 |
||
|
Al2O3,% ≥ |
75 |
75 |
65 |
65 |
65 |
60 |
50 |
|
|
Apparent Porosity,% ≤ |
20 |
21 |
21 |
22 |
22 |
22 |
23 |
|
|
Bulk Density, g/cm3 |
2.65-2.85 |
2.65-2.85 |
2.50-2.70 |
2.40-2.60 |
2.35-2.30 |
2.30-2.50 |
2.30-2.50 |
|
|
Compress Strength, Mpa ≥ |
60 |
60 |
60 |
55 |
55 |
55 |
50 |
|
|
Creep Rate, % |
1550℃ |
1500℃ |
1450℃ |
1400℃ |
1350℃ |
1300℃ |
1270℃ |
|
|
Permanent Linear Change % |
1550℃,2h |
0.1－-0.2 |
0.1－-0.2 |
0.1－-0.2 |
-- |
-- |
-- |
-- |
|
1450℃,2h |
-- |
-- |
-- |
0.1－-0.2 |
0.1－-0.4 |
0.1－-0.4 |
0.1－-0.4 |
|
Contact : Claire Feng, +86 371 62985001
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